323312121281 has 2 divisors, whose sum is σ = 323312121282. Its totient is φ = 323312121280.

The previous prime is 323312121271. The next prime is 323312121313. The reversal of 323312121281 is 182121213323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 242417384881 + 80894736400 = 492359^2 + 284420^2 .

It is a cyclic number.

It is not a de Polignac number, because 323312121281 - 2²⁶ = 323245012417 is a prime.

It is a super-2 number, since 2×323312121281² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (323312121221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161656060640 + 161656060641.

It is an arithmetic number, because the mean of its divisors is an integer number (161656060641).

Almost surely, 2^323312121281 is an apocalyptic number.

It is an amenable number.

323312121281 is a deficient number, since it is larger than the sum of its proper divisors (1).

323312121281 is an equidigital number, since it uses as much as digits as its factorization.

323312121281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 29.

The spelling of 323312121281 in words is "three hundred twenty-three billion, three hundred twelve million, one hundred twenty-one thousand, two hundred eighty-one".